Php – Why did php5-fpm restart fail

PHPphp-fpm

I am getting this error when I restart PHP:

Restarting PHP5 FastCGI Process Manager: php5-fpm failed!

I am now phpless. I did touch the config file, but I can’t undo it as I lost my connection and I did not back it up.

Here is my current /etc/php5/fpm/pool.d/www.conf with all the comment lines removed.

[www]
listen = /var/run/php-fastcgi/php-fcgi.socket
user = php-www
group = php-www
pm = dynamic
pm.max_children = 10
pm.start_servers = 5
pm.min_spare_servers = 1
pm.max_spare_servers = 5

chdir = /

What’s wrong with that? And what log file can I look into to find the reason it failed?

Best Answer

This happens to me when there's another process running that was spawned from php-fpm. For example, I have a page that runs ImageMagick from command line in order to create thumbnails from images. If I try to restart php-fpm while ImageMagick is still running then it will fail after a timeout of it waiting for the process to finish.

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By default the Nginx source does not define SCRIPT_FILENAME in the fastcgi_params file, so unless the repo you installed Nginx from does that you need to do it yourself.

Check if the following line is in your fastcgi_params file:

fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;

and if not then add it.

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Some ideas:

Lower your fpm settings then increase as needed:

pm.max_children = 10 # concurrent children's
pm.start_servers = 2
pm.min_spare_servers = 2
pm.max_spare_servers = 4
pm.max_requests = 300 # till restart

Lower the nginx settigns.
Install pecl-apc(Debian package is php5-apc).
Update your php/nginx version to latest stable

What is your server spec?

Best Answer

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Nginx – Ever increasing mem usage by php-fpm

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